Search a number
12010201020 = 2233522241113
BaseRepresentation
bin10110010111101110…
…10001111110111100
31011000000022102112000
423023313101332330
5144044102413040
65303432142300
7603424011216
oct131367217674
934000272460
1012010201020
115103499874
1223b2237990
1311952c6a2c
1481d1155b6
154a45d8130
hex2cbdd1fbc

12010201020 has 48 divisors (see below), whose sum is σ = 37365071520. Its totient is φ = 3202720128.

The previous prime is 12010201003. The next prime is 12010201057. The reversal of 12010201020 is 2010201021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12010200993 and 12010201011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11120017 + ... + 11121096.

It is an arithmetic number, because the mean of its divisors is an integer number (778438990).

Almost surely, 212010201020 is an apocalyptic number.

12010201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010201020 is an abundant number, since it is smaller than the sum of its proper divisors (25354870500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12010201020 is a wasteful number, since it uses less digits than its factorization.

12010201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22241131 (or 22241123 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12010201020 its reverse (2010201021), we get a palindrome (14020402041).

Subtracting from 12010201020 its reverse (2010201021), we obtain a palindrome (9999999999).

The spelling of 12010201020 in words is "twelve billion, ten million, two hundred one thousand, twenty".